BGS mineralogy and petrology collection record
| Sample number | E78139; COLLNOSSK101505; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Thin section |
| Locality details | RHIW 4 Borehole, Sarn Mellteyrn, Gwynedd |
| 50k map sheet | Not entered |
| Map reference | SH 2289 2949 |
| Year collected | Not entered |
| Bore name | Rhiw 4 |
| Confidentiality | No restrictions |